/* 页面通用样式 */
.page-header {
    position: relative;
    overflow: hidden;
    color: white;  /* 默认白色文字 */
    text-align: center;
    padding: 120px 0 100px;  /* 增加上部空间 */
    margin-bottom: 40px;
}

.page-header-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 60%, #60a5fa 100%); /* 使用更新的颜色 */
    z-index: -1;
    transform: skewY(-5deg);
    transform-origin: top left;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1); /* 增加阴影效果 */
}

.page-header-content {
    position: relative;
    z-index: 1;
    max-width: 900px; /* 增加宽度 */
    margin: 0 auto;
    padding: 0 20px;
}

.page-title {
    font-size: 3.5rem; /* 增加字体大小 */
    font-weight: 800; /* 增加字重 */
    margin-bottom: 25px;
    color: #fff;
    text-shadow: 0 4px 16px rgba(0,0,0,0.25), 0 1px 0 #2563eb;
    letter-spacing: -0.5px; /* 字间距调整 */
    line-height: 1.2;
}

.page-description {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.95); /* 略微透明以增加层次感 */
    margin-bottom: 35px;
    line-height: 1.7;
    text-shadow: 0 2px 8px rgba(0,0,0,0.18);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-action {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-top: 30px;
}

.page-action .btn {
    padding: 14px 32px; /* 更大的按钮 */
    font-size: 1.1rem;
    border-radius: 10px; /* 更圆润的按钮 */
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1); /* 更平滑的动画 */
    font-weight: 600;
    letter-spacing: 0.3px;
}

.page-action .btn-outline {
    background: transparent;
    border: 2px solid white;
    color: white;
}

.page-action .btn-primary {
    background: white;
    color: #1e40af; /* 使用更新的主色调 */
    border: 2px solid white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15); /* 添加阴影 */
}

.page-action .btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.page-content {
    padding: 60px 0 100px; /* 增加内容区域的上下间距 */
    background-color: var(--bg-color);
    position: relative;
}

/* 内容卡片样式 */
.content-card {
    background: white;
    border-radius: 16px; /* 更大的圆角 */
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06); /* 更柔和的阴影 */
    padding: 40px;
    margin-bottom: 40px;
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 0, 0, 0.03); /* 添加微妙的边框 */
}

.content-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.content-card h3 {
    font-size: 1.7rem;
    color: #1e40af; /* 使用更新的主色调 */
    margin-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
    padding-bottom: 15px;
    font-weight: 700;
}

.content-card p {
    color: #374151; /* 更深的文本颜色，提高可读性 */
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: 1.05rem; /* 略微增大正文字体 */
}

/* 图表和图像样式 */
.chart-container {
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    padding: 30px;
    margin: 30px 0;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.chart-container h3 {
    font-size: 1.4rem;
    color: #1e40af;
    margin-bottom: 20px;
    font-weight: 600;
}

.chart-img {
    width: 100%;
    max-height: 500px;
    object-fit: contain;
    border-radius: 8px;
    transition: transform 0.5s ease;
}

.chart-img:hover {
    transform: scale(1.02);
}

/* 步骤和流程样式 */
.process-steps {
    display: flex;
    flex-wrap: wrap;
    margin: 40px 0;
    gap: 25px;
    justify-content: space-between;
}

.process-step {
    flex: 1;
    min-width: 230px;
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    position: relative;
    text-align: center;
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.process-step:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.step-number {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%); /* 使用渐变背景 */
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin: 0 auto 20px;
    font-size: 1.2rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.process-step h4 {
    color: #1e40af;
    margin-bottom: 15px;
    font-size: 1.3rem;
    font-weight: 600;
}

.process-step p {
    color: #4b5563; /* 更新的文本颜色 */
    font-size: 1rem;
    line-height: 1.7;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
    
    .page-description {
        font-size: 1.1rem;
    }
    
    .process-steps {
        flex-direction: column;
    }
    
    .process-step {
        width: 100%;
        margin-bottom: 20px;
    }
    
    .content-card {
        padding: 25px;
    }
    
    .page-action {
        flex-direction: column;
        gap: 15px;
    }
    
    .page-action .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 2rem;
    }
    
    .page-header {
        padding: 80px 0 70px;
    }
    
    .chart-container {
        padding: 20px;
    }
}

/* 动画效果 */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.2s;
}

.delay-2 {
    transition-delay: 0.4s;
}

.delay-3 {
    transition-delay: 0.6s;
}

/* 信息面板 */
.info-panel {
    display: flex;
    background: #ffffff; /* 纯白背景 */
    border-radius: 16px;
    overflow: hidden;
    margin: 40px 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.info-panel-image {
    flex: 1;
    min-width: 300px;
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.info-panel-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s ease;
}

.info-panel-image:hover img {
    transform: scale(1.05);
}

.info-panel-content {
    flex: 2;
    padding: 40px;
}

.info-panel h3 {
    color: #1e40af;
    margin-bottom: 20px;
    font-size: 1.7rem;
    font-weight: 700;
}

.info-panel p {
    color: #4b5563;
    line-height: 1.8;
    font-size: 1.05rem;
}

@media (max-width: 768px) {
    .info-panel {
        flex-direction: column;
    }
    
    .info-panel-image {
        height: 250px;
        min-width: 100%;
    }
    
    .info-panel-content {
        padding: 30px;
    }
}

/* 数据卡片 */
.data-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin: 40px 0;
}

.data-card {
    background: white;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.data-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.data-card-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f0f7ff; /* 更浅的背景色 */
    border-radius: 50%;
    color: #1e40af;
    font-size: 28px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.data-card h4 {
    color: #111827;
    margin-bottom: 15px;
    font-size: 1.3rem;
    font-weight: 600;
}

.data-card p {
    color: #4b5563;
    font-size: 1rem;
    line-height: 1.7;
} 